For Mac developers , Xamarin Studio is now available as a benefit of Visual Studio Professional or Enterprise subscriptions. Developers can use the newly-created Xamarin Studio Community Edition for free.

Another big announcement it is that The Mono Project it is added to the .NET Foundation, including some previously-proprietary mobile-specific improvements to the Mono runtime. Mono will also be re-released under the MIT License, to enable an even broader set of uses for everyone. More details to the Mono Project blog.

The changes to Mono remove all barriers to adopting a modern, performing .NET runtime in any software product, embedded device, or engine, and open the door to easily integrate C# with apps and games on iOS, Android, Mac, and Windows and any emerging platforms developers want to target in future.